Concealed-hinge stove-door.



L. scrweesy GONGEALED HINGE STOVE DOOR.

APPLIGATION FILED JULY 22, 1910.

1,007,147. 7 Patented 0011.31, 1911.

WITNESSES:

% ATTORNEY.

UNITED STATES PATENT OFFICE.

LOYD SCRUGGS, OF OMAHA, NEBRASKA.

CONGEALED-HINGE STOVE-DOOR.

Specification of Letters Patent.

Application filed July 22,

Patented Oct. 31, 1911. 1910. Serial No. 573,296.

v for mounting stove doors.

' One object of my invention is to provide a stove door which is, so constructed that the hinges are completely concealed or hidden from view when the door is closed.

Another object is to provide a stove door of the character described which is so con structed that it'cannot bind or become ac: cidentally displaced or shifted during the operation ofopening and closing it.

Another object is to provide a stove door having a concealed hinge which is so designed that no slot or opening will ,be formed between the hinged edge of the door and the door frame when the door is opened.

Another object is to provide a stove door having a concealed locking device and hinges of novel construction. And still another object is to provide an inexpensive concealed hinge stove door that can be mounted and dismounted easily.

Other objects and desirable features of my invention will be hereinafter pointed out.

Figure 1 of the drawings is a vertical sectional View taken through the upper Warming oven of a cookingrange provided wit-h one of my improved doors, said figure showing the inner side of the oven door and the mner side of the door frame in elevation; Fig. 2 is a vertical sectional view V the door; Fig. 5 is a horizontal sectional yiew illustrating my invention embodied in a door that swings in a horizontalplane; Fig. 6 is an inverted-horizontal sectional view .of such a structure showin the door open; and Fig.7 is a rearelevational view of the parts shown in Fig. 5.

Referring to Figs. 1 to t of the drawings which illustrate the preferred form of my invention, 2 designates an oven door whose lower edge portion is hinged to a door frame 9 thatforms part of the front wall of the oven, said door being provided with an inner lining d. The lower edge portion 4 of the door curves inwardly toward the door frame, as shown in Fig. 2, and terminates in a comparatively sharpv lower edge 3, and the peripheral edge 5 of the door is so shaped that it bears snugly against the outer face 6 of the door frame so proportioned that it laps overt-he portions of the door frame 9 which lie adjacent thev edges of the. door opening, and

are so designed and arranged that they are completely concealed or hidden from view .when the door is closed, as shown inFig. 2.

In the preferred 'form of my invention 10, which consist of downwardly curved arms, project inwardly from the lower edge of the door through slots or guide-ways 11 in the door frame and engage cooperating hinge members 7 which consist of semi-cylindrical-shaped lugs that are preferably formed integral with the door jamb 8. These hinge members "7 are so proportioned that the transverse axes of same are located at the point where the lower edge 3 of the vdoor terminates, and the arms 10 are concentric with the lower edge 3 of the door and are of the same radius as the lugs 7 so that they will slide over the convex surfaces of said lugs without changing the axis about which the door turns or revolves. Consequently, the lower edge 3 of the door will remain in engagement with the front face' 6 of the door frame when the door is swung downwardly or opened, as shown in Fig. 3. This is a very desirable feature in when the door is closed. The door 2 is the hinges on which the door is mounted as herein shown, "a pair of hinge members the construction of stove doors, especially v escaping from the oven and dropping down wardly onto the top of the stove as would be apt to occur ifthe lower edge of the door moved away from the front face of the door frame when the doo'fmove'd into its open position.

- To overcome the possibility of the door jamming or becoming displaced or shifted accidentally during the operation of opening and closing same I have provided means for holding the arms 10 on the lugs 7 which act as seats for same when the door is being moved intd its open or closed positions. Said means is herein shown as consisting of plates 14 .arranged on the inner side of the door frame in such a manner that the lower ends of same bear upon ribs 16 on the arms 10 during the time the door is moved from its closed to its open position and vice versa, said plates also cooperating with stops 12 on the inner ends of the arms 10 so as to limit the outward movement of the door and hold the door in a substantially horizontal position, as shown in Fig. 3. The plates 14 extend'into, the guideways 11 or lap over said guideways, and they are detachably connected to the door frame so that they can be removed when it is desired to mount the door or dismount it, the plates14 being preferably arranged in recesses in lateral extensions 13 on the door frame and secured to the frame by means of bolts 15 or other suitable fastening devices. It will thus be seen that the plates 14 perform two functions, namely, they prevent the arms 10 on the door from moving upwardly ofi the lugs or seats 7 when the door is being opened and closed, and they also prevent the door from being removed or disconnected from the door frame. 1

The means for locking the door or retaining. it in its closed position is also hidden from view when the door is closed, and in the form of my invention herein shown said means consists of a hook 18 on the inner side of the door that is adapted to enter an opening or recess 19 in one of the vertical side portions of the door jamb and engage a shoulder or lug 20 that extends across the bottom or lower edge of the opening 19. The door has to be raised slightly so as to permit the hook 18 to enter or withdraw from the opening 19, as indicated by the broken lines 21 .in Fig. 2, and I have therefore formed'the ribs 16 on the arms 10 in such a manner that the door can be raised bodily in a vertic .1 plane when it is closed or nearly closed, t1 .e front ends of the ribs 16being curved at 17 and terminating at such a point that the plates 14 do not bear upon said ribs when thedoor is closed or nearly closed. To open the door it is only necessary to raise it slightly so as to disengage the hook 18 from the shoulder 20, and then move the door downwardly until the stops 12 on the inner described, the hinge members on both the ends of the arms 10 strike the plates 14, said plates bearing upon the ribs 16 on the arms 10 and thus preventing the arms from rising upwardly off the lugs 'Z on the door frame.

In a construction of the character above door and on the door frame are completely hidden fromview when the door is closed, and the openings or guideways in the door frame through which the hinge members on the door pass, are also concealed because saidv hinge members are connected to the door in sucha manner that .the lower edge of the door always projects downwardly over said hinge member guideways. There is no liability of the door jamming or shifting accidentally out of position when it is being opened and closed because the devices 14 on the door frame prevent the hinge members 10 on the door from rising upwardly off the curved cooperating hinge member 7 on the door frame, and as the lower edge 3 of the door always fits snugly against the front face 6 of the door frame and never moves away from same, it is impossible for dirt or food to drop downwardly between the lower edge of the door and the door frame. Consequently, a door of the construction above described is admirably adapted for use on an upper warmlng oven for the door can be used as a shelf whose rear edge fits tightly against the front wall of the oven. The

.catch or fastening device which looks the door in its closed position is also concealed from view when 'the door is closed so thatthe entire structure presents a neat and ornamental appearance. whlch is not marred by hinge members or other projections on p which dirt can collect. The door can be mounted or dismounted easily by simply removing the plates 14 on theinner side of the door frame, and as the cooperating hinge members on the doorand on the frame are preferably formed integral with the parts which carry same the structure can be manufactured at a comparatively low cost.

In Figs. 5, 6 and 7 I have illustrated my invention embodied in a door thatswings in a horizontal plane, one of the vertical side edges of the door being hinged to the. door 'frame.- The door is provided at one ofits side edges'with laterally projecting curved arms 10 that project inwardly through slots or guldeways -11 in one of the vertical side piecesof the door frame 9, and semi-cylindrical-shaped lugs 7 are arranged on the inner side of the frame so as to cooperate with the arms 10 on the door, said arms and lugs being so arranged that the side edge 3 of.

the door forms the axis about which the door turns. The slots or guideways 11 are of the same width as the arms 10 on the door but the height of said slotsis greater than the thickness of said arms so as to provide for the stops 22 on the inner ends of the arms which control the outward movement of the door, said stops being preferably arranged on the under side of the arms 10, as shown clearly in.Fig. 7. Removableplates 23 are arranged on the inside of the door frame adjacent the guideways 11 so as to prevent the door from becoming accidentally detached from the frame, and the lower edges. of said plates 23 are spaced far enough above the arms 10 to permit the door to be raised bodily, as indicated by the broken line 24 in Fig. 7, when it is closed or nearly closed and thus cause the hook or catch onthe door to engage with or be disengaged from the cooperating shoulder on the door frame.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: 1'. In a stove, a door frame, a door arranged in engagement with the front face of said frame, inwardly projecting curved arms on said door which are concentric with the hinged edge of the door, curved members on the inner side of the door frame on whichsaid arms slide, the door frame being provided with guideways for receiving said arms, and means for preventing said arms from moving out of engagement with said curved members while the door is moving from its open to its closed position and vice versa.

2.'In a stove, a door frame, a door for closing the opening insaid frame, inwardly projecting curved arms on said door which are concentric with the hinged edge of the door,'the frame being provided with guide ways for said arms which are so located that the door completely covers same when it is closed, curved members onthe inner side of the door frame on which said arms slide, and removable devices on the door frame thatlap partially over said guideways and operate to hold the arms on the door in engagement with the curved members on the frame when the door is being. opened or closed. c

3. In a stove, a doorvframe, a door for closing the opening in said frame, said frame being provided with slots or guideways which are completely concealed when'the door is closed, curved arms on said door projecting ginwardly through said guideways and being concentricwith the hinged edge of the door, stops on'said arms that limit the outward movement. of the door, and removable devices on said frame which prevent the door from becoming accidentally detached from the-frame. a v

4 In a stove, a door frame, a door that closes the opening in'said frame, said framehaving guideways which are completely concealed by said door when the door is closed, curved arms projecting inwardly from the a hinged edge of the door and formed in such "a manner that'the hinged edge of the door always remains in. engagement with the front face of the door frame when the door is opened, curved members on the inner side of the. door frame upon which said arms slide, removable devices onfthe inner side of the door frame that hold said arms, on said curved members when the door -is being I opened or'closed, and stops on said arms that cooperate with said devices to limit the V outward movement of the door,

5. In a stove, a door frame, a door for closing the opening in said frame, said frame having guideways which are completely covered by the door when the door is closed, curved arms projecting inwardly fromsaid door'through saidguideways and being concentric with the hinged edge of the door, curved members on the inner side of the door frame upon which vsaid arms slide, ribs on said arms, devices on the door frame which bear upon said ribs when the door is being opened .or closed, a shoulder on the door frame, and a catch on the door thatlis' adapted to engage said shoulder and thus lock the door in its closed position,the ribs on said arms being so designed that the door can be shifted bodilyslightly when it is closed or nearly closed.

6. In a stove, a door frame, a door having its lower edge lapped over said frame, inwardly disposed arms on said door which are curved concentrically with the terminal .lower edge of the door, semi-cylindrical lugs on said frame disposed in axial alinement with the terminal edge of the door so as to engage the inner curved surfaces of said arms, a catch, lug or shoulder on the door frame, a fastening hook on said door .to engage said catch or lug, stops on said arms,'devices on the door frame arranged to engage said stops and spaced above sald arms a distance equal to the depth of the fastening hook on the'door, and guide ribs on said arms which engage the devices on said frame'so as to retain said curved arms seated on said semi-cylindrical lugs when the door is open.

7 In a stove, a door frame, a door having its lower edge portion lapped over the frame,

inwardly projecting arms on said doorthat are curved concentrically with the lower edge of thedoor, guideways in said frame through which said arms pass, stops on the inner ends of the arms, semi-cylindrical lugs arranged on the inner side of the frame at .the bottom of said'guideways and in axial alinement with the lower edge of the door so as to form seats for said arms, a hook on said door, a cooperating shoulder on said frame, removable plates arranged on the inner side of said frame in such a manner that they cooperate with the stops on said arms to limit the outward movement of the door and guide ribs on said arms that cooperate withsaid plates to hold said arms 'seatedon the lugs on the door frame when the door isopen.

In testimony whereof I .atfix my signature in presence of two witnesses.

, LOYD SORUGGS. l/Vitnesses: I

JOHN W. PARISH, Anonr A. TENOPIR. 

